CN115119094A

CN115119094A - Earphone set

Info

Publication number: CN115119094A
Application number: CN202210672333.3A
Authority: CN
Inventors: 张铁男; 单海波; 李岩; 莫大胜
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2022-09-27
Also published as: CN119815237A; US20240107221A1; WO2022143234A1; EP4247001A1; CN114697791A; EP4247001A4

Abstract

The utility model provides an earphone, which comprises a housin, the speaker, the microphone of making an uproar falls, dust screen and outward appearance net, the casing is equipped with the inner space, intercommunication face and radio reception passageway, the intercommunication face is used for intercommunication inner space and external environment, be equipped with out the sound hole on the intercommunication face, go out sound hole intercommunication inner space, the inner space is located to the speaker, the radio reception passageway is formed with the radio reception mouth on the intercommunication face, the radio reception passageway still is formed with the sound receiving hole in another position of casing, the microphone of making an uproar falls is located on the casing and is covered the sound receiving hole, the dust screen is located on the intercommunication face, the outward appearance net is located on the casing and is covered the intercommunication face. The earphone is through designing out the sound hole on the intercommunication face to through radio reception passageway design radio reception mouth on the intercommunication face, increase dust screen and outward appearance net simultaneously, thereby make the microphone of making an uproar of falling receive the noise through radio reception mouth towards the duct, make the noise of received noise in can being close to the duct as far as possible, optimize the condition of the debugging of making an uproar of falling, realize more excellent noise reduction effect, dustproof effect is better simultaneously.

Description

Earphone set

Technical Field

The application relates to the field of earphones, in particular to an earphone.

Background

Earphones in the current market usually adopt the mode of actively reducing noise to offset the noise heard by human ears, thereby optimizing the sound effect and tone quality of the earphones. Currently, there are three main ways of active noise reduction: feedforward active noise reduction, feedback active noise reduction, and hybrid active noise reduction. The feedforward type active noise reduction is to pick up the noise of the external environment and offset the environment, so that the noise reduction effect on the wind noise is poor, and even the wind noise can be amplified; the feedback type active noise reduction picks up the noise in the auditory canal, and for the headset or the in-ear earphone, because the passive noise reduction effect of the ear muffs and the ear muffs is good and the influence of wind noise is small, the noise reduction effect of the noise reduction microphone arranged in the headset or the in-ear earphone is good; hybrid active noise reduction combines the two noise reduction modes. For a half-in-ear earphone, because there is no passive noise reduction structure such as earmuffs or ear bags, the feedback noise reduction microphone can be interfered by the external environment, so that the noise reduction effect is deteriorated.

Disclosure of Invention

In view of the above, it is desirable to provide a headphone, which facilitates to improve the noise reduction effect.

The first aspect of the embodiment of the application provides an earphone, include casing, speaker, fall microphone, dust screen and the outward appearance net of making an uproar, the casing is equipped with inner space, intercommunication face and radio reception passageway, the intercommunication face is used for the intercommunication inner space and external environment, be equipped with out the sound hole on the intercommunication face, go out the sound hole intercommunication inner space, the speaker is located inner space, the radio reception passageway in be formed with the radio reception mouth on the intercommunication face, the radio reception passageway in another position of casing still is formed with the sound receiving hole, it locates to fall the microphone of making an uproar on the casing and cover the sound receiving hole, the dust screen is located on the intercommunication face, the outward appearance net is located on the casing and will the intercommunication face covers.

The earphone is through designing out the sound hole on the intercommunication face to through radio reception passageway design radio reception mouth on the intercommunication face, increase dust screen and outward appearance net simultaneously, thereby make the microphone of making an uproar of falling receive the noise through radio reception mouth towards the duct, make the noise that receives can be close to the noise in the duct as far as possible, optimize the condition of the debugging of making an uproar of falling, realize more excellent noise reduction effect.

In one possible design of the first aspect, the dust-proof net covers the sound outlet and the sound receiving opening. Better dustproof effect can be realized by covering the sound outlet and the sound receiving port.

In a possible design of the first aspect, an acoustic resistance of an area of the dust-proof net covering the sound receiving port is lower than an acoustic resistance of an area of the dust-proof net covering the sound outlet port. The low acoustic resistance of the sound receiving port is beneficial for the noise reduction microphone to receive noise through the sound receiving port, so that the received noise can be as close to the noise in the auditory canal as possible.

In one possible design of the first aspect, an acoustic resistance of the dust screen at the sound reception port is less than or equal to 10MKS Rayls.

In a possible design of the first aspect, the dust-proof net covers the sound outlet and does not cover the sound receiving port. The fact that the sound receiving port is not covered can achieve that the noise reduction microphone receives noise in the auditory canal to the maximum extent.

In a possible design of the first aspect, the casing includes a casing and a support, the casing is provided with a communication hole and the internal space, the communication hole communicates with an external environment, the support is disposed in the internal space and disposed close to the communication hole, the support is provided with the communication surface facing the communication hole, the sound outlet hole communicates with the internal space and the communication hole, the sound reception channel is disposed on the support, the noise reduction microphone is disposed on the support, the sound reception port communicates with the sound reception channel and the communication hole, and the appearance net is disposed between the casing and the support and covers the communication hole. The design of the bracket is beneficial to the reasonable design of the sound receiving channel and the sound outlet hole.

A possible design of the first aspect, the shell includes a front shell and a rear shell, the front shell is located on the rear shell, and the front shell and the rear shell jointly surround to form the internal space, the support and the speaker are located on the front shell, the speaker and the support divide the internal space into a front cavity and a rear cavity, the front cavity is located between the speaker and the support, the rear cavity is located between the speaker and the rear shell, the noise reduction microphone is located in the front cavity, the communication hole is located on the front shell, the communication hole communicates the front cavity with the external environment, the dust screen and the appearance screen are located between the front shell and the support. The design of the front shell and the rear shell is beneficial to the installation of a bracket, a loudspeaker and the like, and is convenient for production and processing.

In a possible design of the first aspect, the bracket is provided with a mounting surface near the sound outlet, the sound receiving hole is formed in the mounting surface and near the communication surface, the noise reduction microphone is arranged on the mounting surface through a connecting piece, and the sound receiving hole is communicated with the sound receiving end of the noise reduction microphone. The design of the mounting surface close to the sound outlet hole is beneficial to realizing that the noise reduction microphone is close to the communication surface to the maximum extent and is more beneficial to receiving the noise in the auditory canal.

In one possible design of the first aspect, the earphone further includes a sealing member for sealing the communication hole and the housing at the communication surface with the holder. The design of the sealing member is favorable for preventing dust and sound waves from being transmitted from the gap.

In a possible design of the first aspect, the sealing member includes a first sealing member, a second sealing member, and a third sealing member, the first sealing member is disposed between the dust screen and the communication surface to seal the dust screen on the communication surface, the second sealing member is disposed between the housing and the appearance screen to seal the appearance screen on the housing and the communication hole, and the third sealing member is disposed between the dust screen and the appearance screen to seal the dust screen and the appearance screen.

In a possible design of the first aspect, openings are provided on the first sealing element and the third sealing element at positions corresponding to the sound outlet hole and the sound receiving port, so that the sound outlet hole and the sound receiving port at the communication hole are separated between the housing and the bracket. The sound emitted by the loudspeaker from the sound outlet hole has the minimum influence on the noise reduction microphone in the sound receiving port, so that the noise reduction microphone can receive the noise in the ear canal as much as possible.

In one possible design of the first aspect, the first sealing member, the second sealing member, and the third sealing member are double-sided tapes or glues. The cost is saved, and the installation efficiency is improved.

In a possible design of the first aspect, the sound receiving port and the sound outlet hole are isolated from each other, and the sound receiving channel and the front cavity are isolated from each other by the bracket. The influence of the speaker on the sound pickup of the noise reduction microphone is minimized.

In a possible design of the first aspect, the rear housing comprises an earphone front end and an earphone rear end, the earphone front end is used for mounting the speaker and arranging the front housing, and the earphone rear end is used for holding by hand. The rear end of the earphone is convenient for a user to hold so as to wear the earphone on the ear of the user.

In one possible design of the first aspect, the rear cavity is provided with a circuit board, a battery module, a power input unit, a communication unit, or a microphone for communication.

In one possible embodiment of the first aspect, the appearance mesh is a metal mesh. The fashion sense and the mechanical reliability of the earphone are improved, and the inner dustproof net, the loudspeaker, the noise reduction microphone and the like are prevented from being damaged by external force.

In one possible design of the first aspect, the apparent net has an acoustic resistance of less than or equal to 10Rayls MKS.

In one possible design of the first aspect, the sound reception port is located on a side of the communication surface away from the speaker. The influence of the loudspeaker on the pickup of the noise reduction microphone is convenient to reduce.

In one possible design of the first aspect, the headset is further provided with an active noise reduction microphone. The sound quality can be further improved.

Drawings

Fig. 1 is a schematic structural diagram of an earphone according to a first embodiment of the present application.

Fig. 2 is a partially exploded perspective view of the headset of fig. 1.

Fig. 3 is a perspective view of the stand of the headset shown in fig. 2.

Fig. 4 is a cross-sectional view of the headset shown in fig. 1.

Fig. 5 is a sectional view of an earphone according to a second embodiment of the present application.

Fig. 6 is a sectional view of an earphone according to a third embodiment of the present application.

Fig. 7 is a sectional view of an earphone according to a fourth embodiment of the present application.

Description of the main elements

Earphones

100, 200, 300

Housing 10

Outer casing 11

Front shell 111

Rear shell 112

Earphone front end 1121

Earphone back end 1122

Support 12

Communication surface 121

Sound outlet 122

Radio channel 123

Radio port 124

Sound reception hole 125

Mounting face 126

Inner space 13

Front cavity 131

Rear chamber 132

Communication hole 14

Loudspeaker 20

Noise reduction microphone 30

Connecting piece 31

Dust screen 40

Appearance net 50

Seal 60

First seal 61

Second seal 62

Third seal 63

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

Hereinafter, the terms "first", "second", etc., if used, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. "upper," "lower," "left," "right," and like directional terms are defined relative to the schematically-disposed orientations of elements in the drawings, and it is to be understood that these directional terms are relative terms, which are used for descriptive and clarifying purposes, and which will vary accordingly depending on the orientation in which the elements are disposed in the drawings.

In the present application, the term "connected", if used, is to be understood broadly, unless otherwise explicitly stated or limited, for example "connected" may be a fixed connection, a detachable connection, or an integral part; may be directly connected or indirectly connected through an intermediate. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the following detailed description of the embodiments, which is described in conjunction with the schematic drawings, the drawings showing the partial structure of the device are not necessarily drawn to scale and are partially enlarged for convenience of illustration, and the schematic drawings are only examples and should not be construed as limiting the scope of the present application.

Example one

As shown in fig. 1 and fig. 2, an earphone 100 according to a first embodiment of the present application is provided. The earphone 100 can actively reduce noise and offset noise in the ear canal, thereby improving sound effect and tone quality of the earphone 100. The earphone 100 may be an in-ear earphone, a semi-in-ear earphone, a headphone, or the like, and more particularly to a semi-in-ear earphone.

The earphone 100 includes a housing 10, a speaker 20, a noise reduction microphone 30, a dust screen 40, and an appearance screen 50. The housing 10 is provided with an inner space 13 communicating with the outside. The speaker 20 and the noise reduction microphone 30 are disposed in the internal space 13 (see fig. 4) of the housing 10. The dust screen 40 and the appearance screen 50 are disposed on the housing 10 and located at a position where the internal space 13 communicates with the outside, so that the internal space 13 communicates with the outside through the dust screen 40 and the appearance screen 50.

The housing 10 includes a casing 11 and a bracket 12. The housing 11 is provided with the internal space 13 and the communication hole 14. The communication hole 14 is used to communicate the internal space 13 with the external environment, and when the earphone 100 is worn on the ear of a human body, the communication hole 14 is directed to the ear canal of the human body. The bracket 12 is provided in the inner space 13 of the housing 11 and is disposed adjacent to the communication hole 14. The noise reduction microphone 30 is disposed on the bracket 12. The dust screen 40 and the appearance screen 50 are located between the housing 11 and the bracket 12, and cover the communication hole 14.

Specifically, the housing 11 includes a front case 111 and a rear case 112. The front shell 111 is disposed on the rear shell 112, and the front shell 111 and the rear shell 112 together surround the inner space 13. The bracket 12 is disposed on the front case 111. The speaker 20 is provided on the front case 111. The speaker 20 and the support 12 divide the internal space 13 into a front chamber 131 and a rear chamber 132. A front cavity 131 is located between the loudspeaker 20 and the support 12. A rear cavity 132 is located between the speaker 20 and the rear housing 112. The noise reduction microphone 30 is located in the front cavity 131. The communication hole 14 is provided in the front case 111. The communication hole 14 communicates the front chamber 131 with the external environment. The dust screen 40 and the appearance screen 50 are provided between the front case 111 and the bracket 12, and cover the communication hole 14.

Referring to fig. 3 and 4, the bracket 12 is substantially matched with the inner wall of the front housing 111. The holder 12 is provided with a communication surface 121 toward the communication hole 14. The communication surface 121 is provided with a sound outlet 122. The sound emitting hole 122 communicates the front chamber 131 with the communicating hole 14. The bracket 12 is also provided with a sound receiving channel 123. The sound receiving channel 123 is formed with a sound receiving opening 124 on the communicating surface 121, and the sound receiving channel 123 is further formed with a sound receiving opening 125 at another position of the bracket 12. The noise reduction microphone 30 is disposed on the bracket 12 and covers the acoustic opening 125. On the communication surface 121, the sound receiving port 124 and the sound outlet hole 122 are isolated from each other, and the sound receiving passage 123 and the front cavity 131 are isolated from each other (not communicated) by the holder 12, so that the influence of the speaker 20 on the sound pickup of the noise reduction microphone 30 is minimized.

In this embodiment, the sound receiving port 124 is located on a side of the communication surface 121 away from the speaker 20. The two sound emitting holes 122 are symmetrically disposed on the communicating surface 121, and the sound receiving port 124 is located between the two sound emitting holes 122. But not limited thereto, in other embodiments, the sound emitting hole 122 may also be one or more.

The speaker 20 is used for emitting sound into the front cavity 131 to pass through the sound emitting hole 122 and the communication hole 14 to the ear canal.

The noise reduction microphone 30 is a Feedback microphone (FB Mic, FB Mic or Error Mic) for receiving and picking up the residual noise in the ear canal between the earphone and the human ear after being worn, and the speaker 20 of the earphone releases the reverse sound wave to cancel the noise through an algorithm (built-in noise reduction microphone 30 or other units in the earphone 100 or external processing units).

The inner wall of the bracket 12 is provided with a mounting surface 126 near the sound outlet 122. The acoustic hole 125 is formed on the mounting surface 126 and is close to the communication surface 121. The noise reduction microphone 30 is disposed on the mounting surface 126 through a connecting member 31, and the sound receiving hole 125 is communicated with the sound receiving end of the noise reduction microphone 30, so that the noise in the ear canal is transmitted to the noise reduction microphone 30 through the communication hole 14 and the sound receiving passage 123.

The connecting member 31 may be an adhesive such as a double-sided tape or glue.

Referring to fig. 4, the dust-proof net 40 is disposed on the communication surface 121 and covers the sound outlet 122 and the sound receiving port 124. The appearance net 50 is provided on the front case 111 and completely covers the communication hole 14.

The earphone 100 also includes a seal 60. The seal 60 is used to seal the housing 11 and the holder 12 at the communication hole 14 and the communication surface 121.

The seal 60 includes a first seal 61, a second seal 62, and a third seal 63. The dust-proof net 40 and the appearance net 50 are both plane nets having a shape similar to the shape of the communication surface 121. The first sealing member 61 is provided between the dust screen 40 and the communication surface 121 to seal the dust screen 40 to the communication surface 121. The second sealing member 62 is provided between the front case 111 and the appearance net 50 to provide the appearance net 50 on the front case 111 and seal the communication hole 14. The third sealing member 63 is disposed between the dust screen 40 and the appearance screen 50 to seal the dust screen 40 and the appearance screen 50.

Openings are formed in the first sealing member 61 and the third sealing member 63 at positions opposite to the sound outlet hole 122 and the sound receiving port 124, so that the sound outlet hole 122 and the sound receiving port 124 at the communication hole 14 are separated between the housing 11 and the bracket 12, and therefore, the influence of the sound emitted from the sound outlet hole 122 by the loudspeaker 20 on the noise reduction microphone 30 in the sound receiving port 124 is minimized, and the noise reduction microphone 30 can receive the noise in the ear canal as much as possible. The second seal 62 is formed in a substantially annular shape so as to provide the appearance net 50 on the wall surface around the communication hole 14 of the front case 111.

The first sealing member 61, the second sealing member 62 and the third sealing member 63 may be made of double-sided adhesive, glue, etc.

The dust screen 40 is used to prevent external dust from entering the earphone and affecting the sound effect and tone quality of the earphone.

The external mesh 50 is preferably a metal mesh to increase the fashion sense and mechanical reliability of the earphone, and prevent the internal dust screen 40, the speaker 20, and the noise reduction microphone 30 from being damaged by external force, such as penetration of sharp objects from the outside.

The damping of the appearance mesh 50 should be as small as possible. Preferably, the sound resistance of the appearance mesh 50 is less than 10Rayls MKS (rayleigh, 1rayl is 1 pascal-second per meter under MKS system, and 1rayl is 1Pa × s/m), so as to ensure that the influence of the appearance mesh 50 on the sound reception of the noise reduction microphone 30 is small.

The rear housing 112 includes a headset front end 1121 and a headset rear end 1122. The front end 1121 is used for mounting the speaker 20 and disposing the front case 111. The headset back end 1122 is convenient for a user to hold in his or her hand to wear the headset 100 to the user's ear.

When the earphone is used, a user wears the front end 1121 of the earphone with the front shell 111 on the ear by holding the rear end 1122 of the earphone, so that the side with the communication hole 14 faces the ear canal, the noise in the ear canal is received by the noise reduction microphone 30, and the speaker 20 emits sound with reverse sound waves, so that the noise in the ear canal is eliminated from the sound heard by the human ear, and the sound effect and the sound quality of the earphone are improved.

The rear cavity 132 is used for arranging other components of the headset, such as a circuit board for controlling the headset, a battery module for storing electric energy or an electric energy input unit communicated with an external power supply unit, a communication unit for transmitting signals with the outside, a call microphone for receiving sound emitted by a user, and the like.

Further, the earphone 100 may further include an active noise reduction microphone (fed Mic or Ref Mic), a pressure relief hole, and other elements and designs for improving sound quality and wearing comfort in a conventional earphone.

The utility model provides an earphone 100, through making the connecting surface 121 towards the auditory canal in, establish independent radio reception passageway 123 on support 12, make radio reception mouth 124 be close to the auditory canal position as far as possible, and separate radio reception mouth 124 and the sound outlet 122 of radio reception passageway 123 on the connecting surface 121, and simultaneously, increase dust screen 40, and separate radio reception mouth 124 and the sound outlet 122 between intercommunicating pore 14 and the connecting surface 121 through sealing member 60, thereby make the microphone 30 that makes an uproar fall through radio reception mouth 124 towards the auditory canal received noise, make the noise that received can be close to the noise in the auditory canal as far as possible, optimize the condition of debugging of making an uproar falls, realize more excellent noise reduction effect, dustproof effect is better simultaneously.

Example two

As shown in fig. 5, a headset 200 according to a second embodiment of the present invention is provided.

The earphone 200 has the same structure as the earphone 100, and includes a housing 10, a speaker 20, a noise reduction microphone 30, a dust screen 40, and an appearance screen 50. The main differences from the headset 100 in the first embodiment shown in fig. 1 are: the dust screen 40, the appearance screen 50 and the sealing member 60 have different structures.

Specifically, the dust screen 40 only covers the sound outlet 122, and does not cover the sound receiving port 124. The appearance mesh 50 is in an outwardly convex shape. A third seal 63 of the seals 60 is generally annular to sealingly connect the appearance screen 50 with the outer perimeter of the dust screen 40.

The utility model provides an earphone 200 through making the communicating surface 121 towards the auditory canal in, establishes independent radio reception passageway 123 on support 12 to the radio reception mouth 124 with going out sound hole 122 that will receive radio reception passageway 123 on the communicating surface 121 separates, thereby makes to fall and makes noise reduction microphone 30 through radio reception mouth 124 towards the auditory canal and receive the noise, makes the noise that receives can be close to the noise in the auditory canal as far as possible, optimizes the condition of falling the debugging of making an uproar, realizes more excellent noise reduction effect.

EXAMPLE III

As shown in fig. 6, a headset 300 according to a third embodiment of the present invention is provided.

The earphone 300 has the same structure as the earphone 200, and includes a housing 10, a speaker 20, a noise reduction microphone 30, a dust screen 40, and an appearance screen 50. The main differences from the earphone 200 in the second embodiment shown in fig. 5 are: the dust screen 40 is different in structure.

Specifically, the aperture density of the area of the dust screen 40 covering the sound outlet 122 is different from the aperture density of the area covering the sound receiving port 124, so that the aperture of the dust screen 40 at the sound receiving port 124 is larger, and the acoustic resistance of the dust screen 40 at the sound receiving port 124 is lower (less than or equal to 10MKS Rayls).

The utility model provides an earphone 300, through making the connecting surface 121 towards the auditory canal in, establish independent radio reception passageway 123 on support 12, and separate radio reception mouth 124 and the sound outlet 122 of radio reception passageway 123 on will connecting surface 121, and simultaneously, increase dust screen 40, and reduce the damping of radio reception mouth 124 department dust screen 40 through adjusting, thereby make the microphone 30 that falls to make an uproar through radio reception mouth 124 towards the auditory canal received noise, make the received noise can be close to the noise in the auditory canal as far as possible, optimize the condition of debugging of falling to make an uproar, realize more excellent noise reduction effect.

Example four

Fig. 7 shows a headset 400 according to a fourth embodiment of the present invention.

The earphone 400 has the same structure as the earphone 100, and includes a housing 10, a speaker 20, a noise reduction microphone 30, and a dust screen 40. The main differences from the earphone 100 in the second embodiment shown in fig. 1 are: the appearance mesh 50 is not provided.

Specifically, the dust-proof net 40 may be made of a material with a relatively high mechanical strength, so as to simultaneously function as the dust-proof net 40 and the appearance net 50 in the earphone 100. The seal 60 comprises only a first seal 61 and a second seal 62. The first sealing member 61 is disposed between the dust screen 40 and the communication surface 121 to seal the dust screen 40 on the communication surface 121. The second sealing member 62 is provided between the front case 111 and the dust-proof net 40 to provide the dust-proof net 40 on the front case 111 and seal the communication hole 14.

The aperture density of the dust-proof net 40 can be similar to that of the earphone 300 in the third embodiment, and the aperture covering the sound outlet 122 is designed to be larger than that covering the sound receiving opening 124, so that the acoustic resistance of the dust-proof net 40 at the sound receiving opening 124 is low.

Of course, in other embodiments, the dust-proof net 40 may be multiple, and cover the sound outlet 122 and the sound receiving port 124 respectively (may be disposed on the hole wall or on the surface of the communication surface 121), and the sealing member 60 only includes the second sealing member 62, and is disposed between the front shell 111 and the communication surface 121, so as to seal the communication hole 14 on the front shell 111 through the communication surface 121.

The utility model provides an earphone 400, through making the connecting surface 121 towards the auditory canal in, establish independent radio reception passageway 123 on support 12, and with the radio reception mouth 124 and the sound outlet 122 separation of radio reception passageway 123 on the connecting surface 121, and simultaneously, increase dust screen 40, and reduce the damping of radio reception mouth 124 department dust screen 40 through adjusting, thereby make the microphone 30 that falls to make an uproar through radio reception mouth 124 towards the auditory canal received noise, make the received noise can be close to the noise in the auditory canal as far as possible, optimize the condition of debugging of falling to make an uproar, realize more excellent noise reduction effect.

The present application also proposes a terminal device with the above-mentioned

headset

100, 200 or 300.

The terminal device may be glasses, an AR device, a VR device, or other product with audio effects.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the disclosure of the present application.

Claims

1. An earphone, comprising a housing, a speaker and a noise reduction microphone;

the shell comprises an inner space, a communication surface and a sound receiving channel, wherein the communication surface is used for communicating the inner space with the external environment;

the noise reduction microphone is communicated with the communication surface through the sound receiving channel;

the loudspeaker is arranged in the inner space, the inner space comprises a front cavity, and the loudspeaker is communicated with the communication surface through the front cavity;

the sound receiving channel and the front cavity are isolated from each other.

2. The headset of claim 1, wherein the housing includes a shell and a cradle, the sound reception channel and the front cavity being isolated from each other by the cradle.

3. The headset of claim 2, wherein the sound reception channel is disposed on the cradle and the noise reduction microphone is disposed on the cradle.

4. The headset of claim 2, wherein the housing comprises a front shell and a rear shell, the front shell and the rear shell cooperatively surrounding the interior space;

the bracket is arranged on the front shell; and/or the presence of a gas in the gas,

the loudspeaker is arranged on the front shell.

5. The headset of claim 2, wherein the interior space comprises the front cavity and a back cavity;

the front cavity is located between the speaker and the bracket;

the back cavity is located between the speaker and the back housing.

6. The headset of claim 5, wherein the noise reduction microphone is located in the front cavity.

7. The headset of claim 2, wherein the cradle is disposed in the interior space of the housing and adjacent to the communication surface.

8. The earphone as claimed in claim 2, wherein the sound receiving channel further has a sound receiving hole formed at a position of the holder, and the noise reduction microphone covers the sound receiving hole.

9. The earphone according to any one of claims 1 to 8, wherein the communication surface comprises a sound outlet and a sound reception port;

the sound outlet hole is communicated with the front cavity, and the sound receiving channel forms the sound receiving port on the communication surface;

the sound receiving port and the sound outlet hole are mutually isolated.

10. The headset of claim 9, wherein the sound receiving port is located on a side of the communication surface remote from the speaker.

11. The headset of claim 10, further comprising a dust screen disposed on the communication surface.

12. The headset of claim 11, wherein the dust screen covers the sound outlet and the sound receiving port.

13. The headset of claim 11, further comprising a cosmetic mesh covering the communication surface and the dust screen.

14. The headset of claim 13, wherein the appearance mesh is a metal mesh.

15. The headset of claim 13, wherein the shape of the appearance mesh is an outwardly convex shape.